title: Ethyl 2,5-di-tert-butyl-5-eth-oxy-4-oxo-4,5-di-hydro-1H-pyrrole-3-carboxyl-ate.
abstract: The title compound, C17H29NO4, contains a chiral center and crystallizes as a racemate. The asymmetric unit consists of two non-equivalent mol-ecules, in which the carbeth-oxy groups have markedly different orientations [C(=O)CC(OEt)=O torsion angles = 59.3 (2) and 156.0 (2)°]. In the crystal, mol-ecules form chains along [101] through N-H⋯O hydrogen bonds.
authors.affiliation: Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, MD 21201, USA.
authors.forename: Gerald M
authors.initials: GM
authors.lastname: Rosen
authors.forename: Sukumaran
authors.initials: S
authors.lastname: Muralidharan
authors.forename: Peter Y
authors.initials: PY
authors.lastname: Zavalij
authors.forename: Steven
authors.initials: S
authors.lastname: Fletcher
authors.forename: Joseph P Y
authors.initials: JP
authors.lastname: Kao